{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120749",
    "entityType": "User",
    "nonce": "0xcf9a3292824a38f6f1a222afaf833856c529602d0f5c8e9c206359535596bbd8",
    "signature": "0x827f7b7694c8037cabd20911fcb58dea1b96089612cb1254ad77c2a5221927822740ad3ced7289189e465b671f7a97e73758010c7a0292d09a869cf453c22fa91c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}